1728720

素因数分解:

$2^4\times 3^2\times 5^1\times 7^4$

素因数の和:47

約数の個数: 150

約数和(自身を含む): 6772818

約数和(自身を除く): 5044098

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 80, 84, 90, 98, 105, 112, 120, 126, 140, 144, 147, 168, 180, 196, 210, 240, 245, 252, 280, 294, 315, 336, 343, 360, 392, 420, 441, 490, 504, 560, 588, 630, 686, 720, 735, 784, 840, 882, 980, 1008, 1029, 1176, 1260, 1372, 1470, 1680, 1715, 1764, 1960, 2058, 2205, 2352, 2401, 2520, 2744, 2940, 3087, 3430, 3528, 3920, 4116, 4410, 4802, 5040, 5145, 5488, 5880, 6174, 6860, 7056, 7203, 8232, 8820, 9604, 10290, 11760, 12005, 12348, 13720, 14406, 15435, 16464, 17640, 19208, 20580, 21609, 24010, 24696, 27440, 28812, 30870, 35280, 36015, 38416, 41160, 43218, 48020, 49392, 57624, 61740, 72030, 82320, 86436, 96040, 108045, 115248, 123480, 144060, 172872, 192080, 216090, 246960, 288120, 345744, 432180, 576240, 864360, 1728720]

約数ペア:

[(1, 1728720), (2, 864360), (3, 576240), (4, 432180), (5, 345744), (6, 288120), (7, 246960), (8, 216090), (9, 192080), (10, 172872), (12, 144060), (14, 123480), (15, 115248), (16, 108045), (18, 96040), (20, 86436), (21, 82320), (24, 72030), (28, 61740), (30, 57624), (35, 49392), (36, 48020), (40, 43218), (42, 41160), (45, 38416), (48, 36015), (49, 35280), (56, 30870), (60, 28812), (63, 27440), (70, 24696), (72, 24010), (80, 21609), (84, 20580), (90, 19208), (98, 17640), (105, 16464), (112, 15435), (120, 14406), (126, 13720), (140, 12348), (144, 12005), (147, 11760), (168, 10290), (180, 9604), (196, 8820), (210, 8232), (240, 7203), (245, 7056), (252, 6860), (280, 6174), (294, 5880), (315, 5488), (336, 5145), (343, 5040), (360, 4802), (392, 4410), (420, 4116), (441, 3920), (490, 3528), (504, 3430), (560, 3087), (588, 2940), (630, 2744), (686, 2520), (720, 2401), (735, 2352), (784, 2205), (840, 2058), (882, 1960), (980, 1764), (1008, 1715), (1029, 1680), (1176, 1470), (1260, 1372)]